fe_type.C

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2026 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
// Local includes
#include "libmesh/fe_type.h"
#include "libmesh/quadrature_clough.h"
#include "libmesh/quadrature_gauss.h"
 
// C++ Includes
#include <memory>
 
 
namespace libMesh
{
 
// ---------------------------------------
// FEType class members
 
std::unique_ptr<QBase>
FEType::default_quadrature_rule (const unsigned int dim,
                                 const int extraorder) const
{
  // Clough elements have at least piecewise cubic functions
  if (family == CLOUGH)
    {
      Order o = static_cast<Order>(std::max(static_cast<unsigned int>(this->default_quadrature_order()),
                                            static_cast<unsigned int>(7 + extraorder)));
      return std::make_unique<QClough>(dim, o);
    }
 
  if (family == SUBDIVISION)
    return std::make_unique<QGauss>(dim, static_cast<Order>(1 + extraorder));
 
  return std::make_unique<QGauss>(dim, static_cast<Order>(this->default_quadrature_order() + extraorder));
}
 
 
std::unique_ptr<QBase>
FEType::unweighted_quadrature_rule (const unsigned int dim,
                                    const int extraorder) const
{
  // Clough elements have at least piecewise cubic functions
  if (family == CLOUGH)
    {
      Order o = static_cast<Order>(std::max(static_cast<unsigned int>(this->unweighted_quadrature_order()),
                                            static_cast<unsigned int>(3 + extraorder)));
      return std::make_unique<QClough>(dim, o);
    }
 
  if (family == SUBDIVISION)
    return std::make_unique<QGauss>(dim, static_cast<Order>(1 + extraorder));
 
  return std::make_unique<QGauss>(dim, static_cast<Order>(this->unweighted_quadrature_order() + extraorder));
}
 
} // namespace libMesh